/*
 * Copyright 2010 Assert Developments
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package be.ad.coffeebreak.services;

import be.ad.coffeebreak.domain.Project;

import java.util.List;

/**
 * An interface for project services.
 *
 * @author Stefan Bangels
 */
public interface ProjectsService {

    /**
     * Find a project by id.
     *
     * @param projectId the project id
     * @return the project or null when the project is not found
     */
    public Project findProjectById(long projectId);

    /**
     * Find all projects of a user.
     *
     * @param userId the id of the user
     * @return a list of projects of the user
     */
    public List<Project> findProjectsByUserId(long userId);

    /**
     * Create or update a project.
     *
     * @param project the project
     * @return the created/updated project
     */
    public Project saveProject(Project project);

    /**
     * Delete a project by id.
     *
     * @param projectId the project id
     */
    public void deleteProject(long projectId);

}
